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Average

#5037 of 9,539 schools in CA

Excelsior Middle

Middle School · Byron Union Elementary

14301 Byron Hwy., Byron, CA 94514

Enrollment

423

Student-Teacher

19.2:1

Score

6.2

Grades

6th – 8th

Data vintage2022-23

How this school compares

California schools

#5,037 of 9,539

In district

#2 of 3

Byron Union Elementary

School environment

8.2 / 10

Excellent

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Excelsior Middle

6.2/10

Middle School in Byron · grades 6th – 8th. Start here, then compare fit against nearby and district options.

Timber Point Elementary

4.5/10

2.4 mi away. Use as a geographic alternative in the same move search.

Byron Institute for Independent Study

Nearby

2.4 mi away. Use as a geographic alternative in the same move search.

About Excelsior Middle

Excelsior Middle is a public middle school in Byron, CA, part of Byron Union Elementary. Excelsior Middle serves approximately 423 students, and covers grades 6th-8th, and has a 19.2:1 student-teacher ratio. Excelsior Middle has a current MySchoolScout rating of 6.2 out of 10 and ranks #5,037 of 9,539 schools in CA.

Structured state assessment records for Excelsior Middle show 40% math proficiency (multi-year average, 2009-2024) and 46% reading/ELA proficiency (multi-year average, 2009-2024).

How it compares0.3 pts below CA schools
  • This school 6.2 · Average
  • CA avg 6.5

What Parents Should Know

Excelsior Middle sits in a rural area, which can mean longer drives for some families. Rural schools are often community anchors with smaller classes, but check transportation, after-school options, and access to specialized services before you commit.

Score Breakdown

Full Profile · 3/3 metrics
Student Progress5.8Average40%
Year-over-year improvement in student test scores.
View breakdown
Years of Data14
Annual Change-1.53 pts/yr
Data Period2009–2024
TrendDeclining
Academics5.2Average35%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency31.5% (2024 CAASPP)
Reading/ELA Proficiency40.9% (2024 CAASPP)
Math vs. State Avg-2.9 pts
Reading vs. State Avg-5 pts
Overall Proficiency36% (2024 CAASPP, Math+ELA)
Expected (poverty-adj.)56% (model expectation from 2024 CAASPP)
vs. Expected-20.1 pts
Adjusted Percentile33th
Resources & Environment8.2Excellent25%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio19.2:1
Per-Pupil Spending$15,770
Chronic Absenteeism22.9%

Excelsior Middle — Students at Excelsior Middle score 36% proficient, which is below what's typical for similar communities (expected: 56%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

32.2%

Students qualifying for federal meal assistance

Test Scores CA CAASPP (2023-24)

Math Proficiency 40.4% (multi-year average, 2009-2024)
School
State
33.9% (2024 CAASPP)
ELA Proficiency 46.3% (multi-year average, 2009-2024)
School
State
46.6% (2024 CAASPP)

Based on 34 test records from CA state assessments. About our data

Proficiency Trend

→ Stable

Average proficiency (% at or above grade level) across Math & ELA over time.

2009
Math
44%
ELA
51%
2010
Math
51%
ELA
56%
2011
Math
50%
ELA
54%
2012
Math
56%
ELA
63%
2014
Math
50%
ELA
51%
2015
Math
54%
ELA
58%
2016
Math
51%
ELA
52%
2017
Math
44%
ELA
53%
2018
Math
40%
ELA
48%
2019
Math
40%
ELA
48%
2020*
Math
24.5%
ELA
24.5%
2021*
Math
25%
ELA
25%
2022
Math
30.3%
ELA
40.3%
2024
Math
31.6%
ELA
40.6%

* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.

Source: EdFacts (NCES) and state assessment data. Growth score: 5.8/10.

How Excelsior Middle Compares

See how Excelsior Middle performs across key quality dimensions compared to state benchmarks.

Overall Score
6.2/10
47th percentile in CA
Academic
5.2/10
Average
Growth
5.8/10
Average
Environment
8.2/10
Excellent
Gifted & Talented
Yes
Program available

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
32%
Teaching Staff
19:1 student-teacher ratio
22 teachers
Chronic Absenteeism
Students missing 15+ days per year (SY 2022-23)
22.9%

Programs & Offerings

Gifted & Talented Program Available
This school offers a gifted and talented program for qualifying students. · CRDC 2021-22

Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more

Location

14301 Byron Hwy., Byron, CA 94514

Nearby Alternatives

Families considering Excelsior Middle may also want to explore other middle schools in the area. Edna Hill Middle (rated 5.8/10, 4.6 miles away, in nearby Brentwood), with a comparable rating. Additionally, William B. Bristow Middle (rated 5.3/10, 5.8 miles away, in nearby Brentwood), with a comparable rating. For more schools in Byron, see our Byron schools guide .

Nearby Schools

20 within 6.4 mi
School Distance Rating
Timber Point Elementary Discovery Bay 2.4 mi 4.5
Byron Institute for Independent Study Discovery Bay 2.4 mi
ALL GOD'S CHILDREN CHRISTIAN SCHOOL Discovery Bay 2.7 mi 4.6
All God's Children Christian School Discovery Bay 2.7 mi
Loe Hart School Discovery Bay 3.1 mi
Discovery Bay Elementary Discovery Bay 2.8 mi 7.1
La Paloma High (Continuation) Brentwood 3.7 mi 5.9
Old River Elementary Knightsen 4.1 mi 7.5
Garin Elementary Brentwood 4.4 mi 6.7
Edna Hill Middle Brentwood 4.6 mi 5.8
Celebration Center Brentwood 4.8 mi
Liberty High Brentwood 5.0 mi 7.2
LOVE FOR LEARNING Brentwood 5.0 mi
Independence High Brentwood 5.1 mi 6.6
Brentwood Elementary Brentwood 5.1 mi 5.7
Mary Casey Black Elementary Brentwood 5.5 mi 6.9
SENECA CENTER'S UPRISING ACADEMY Brentwood 5.4 mi
Knightsen Elementary Knightsen 6.4 mi 4.2
William B. Bristow Middle Brentwood 5.8 mi 5.3
Marsh Creek Elementary Brentwood 6.4 mi 7.4

Neighborhood Census ACS (2019-2023)

Census data for ZIP 94514 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$97,946

Median Home Value

$852,900

Median Rent

$2,496/mo

Population

2,044

College Educated

18.4%

Homeownership

63.3%

Poverty Rate

14.3%

Median Age

43.6

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
Emilie J. Ross Middle Hughson, CA 6.2
Frances Ellen Watkins Harper Junior High Davis, CA 6.2
Home Street Middle Bishop, CA 6.2
Live Oak Middle Tulare, CA 6.2
Martin Luther King Jr. Middle San Bernardino, CA 6.2
McKinley Institute of Technology Redwood City, CA 6.2

Frequently Asked Questions

Common questions about Excelsior Middle

What grades does Excelsior Middle serve?

Excelsior Middle serves students in grades 6th through 8th.

How many students attend Excelsior Middle?

Excelsior Middle has an enrollment of approximately 423 students.

What is the student-teacher ratio at Excelsior Middle?

The student-teacher ratio at Excelsior Middle is 19.2:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Excelsior Middle rank in CA?

Excelsior Middle ranks #5,037 of 9,539 schools in CA.

What is Excelsior Middle's MySchoolScout rating?

Excelsior Middle has a current MySchoolScout rating of 6.2 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at Excelsior Middle?

Based on loaded state assessment records, Excelsior Middle has 40% math proficiency (multi-year average, 2009-2024) and 46% reading/ELA proficiency (multi-year average, 2009-2024).

Is Excelsior Middle a charter school?

No, Excelsior Middle is not a charter school. It is a traditional public school operated by the local school district.

Is Excelsior Middle a Title I school?

No, Excelsior Middle is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Excelsior Middle?

32.2% of students at Excelsior Middle qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

11 schools nearby View map →

Neighborhood Context

Walk Score
12 Car-Dependent
Bike Score
28 Somewhat Bikeable

Powered by Walk Score

Quick Facts NCES CCD (SY 2022-23)

Grades
6th – 8th
Enrollment
423
Student-Teacher Ratio
19.2:1
Teachers (FTE)
22
Free/Reduced Lunch
32.2%
Type
regular
Setting
Fringe Rural
County
Contra Costa County
Chronic Absenteeism (SY 2022-23)
22.9%

District

Byron Union Elementary
District Enrollment
1,240
Schools in District
4
Per-Pupil Spending
$15,770
District Rank
#2 of 3

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